CHAMPAIGN, Ill., 9/two/20: The Illinois State Water Survey (ISWS) increasing degree day (GDD) calculator is updated every day via neighborhood climate stations for customers to calculate projections on crop improvement and maturity particularly for their place.
The calculator tallies heat accumulation all through the increasing season, comparing every day maximum and minimum temperatures with a base temperature for every single crop, above which crops will create and mature. Everyday temperatures derive from Illinois Climate Network stations across the state.
The reduce threshold is 50 degrees for corn and 40 degrees for specialty crops. The higher threshold for corn is 86 degrees. The GDD values are calculated from Jan. 1 and made use of to evaluate the progress of a increasing season to the extended-term typical.
Variations take place every single year, and this year, the heat index for the GDD is operating slightly ahead of some preceding years, according to Jennie Atkins, plan manager of the ISWS Water and Atmospheric Sources Monitoring Plan (WARM). Projections of 1 and two weeks can be made use of late in the season, for instance, to aid figure out plant development stages and thereby deliver a lot more info in contemplating when to harvest crops.
The GDD calculator is obtainable on the ISWS WARM web site , which also gives a state map of increasing degree days. The WARM web page demands customers to register, but the info is totally free.
For a regional view of GDD, access the Midwest map on the Midwestern Regional Climate Center web site.